DocumentCode :
557022
Title :
Extraction of accurate 3-D ground coordinates from interferometric radar altimeter (IRA)
Author :
Lee, Dong-Taek ; Jung, Hyung-Sup ; Yoon, Geun-Won ; Kim, Du-Ra ; Sun, Woong
Author_Institution :
Dept. of Geoinf., Univ. of Seoul, Seoul, South Korea
fYear :
2011
fDate :
26-30 Sept. 2011
Firstpage :
1
Lastpage :
4
Abstract :
Conventional radar altimeter system can accurately measure the sea level within several centimeters, whereas it is difficult to precisely estimate the three-dimensional ground coordinates because the ground surface is very rough. To overcome the drawback of the pulse-limited altimeter, we have developed and validated the processing algorithm which is combined with new synthetic aperture and interferometric signal processing. The proposed algorithm can accurately measure the three-dimensional ground coordinates. In a set of 70 simulations, the averages of errors in X, Y and Z directions were about -0.40 m, -0.02 m and 4.22 m, respectively and the standard deviations of errors were about 3.4 m, 0.3 m and 4.6 m, respectively. The overall results demonstrate that the proposed algorithm is effective for accurate three-dimensional geopositioning.
Keywords :
geophysical signal processing; level measurement; oceanographic techniques; radar altimetry; radar interferometry; radar signal processing; synthetic aperture radar; IRA; accurate 3D ground coordinate extraction; accurate three-dimensional geopositioning; interferometric radar altimeter; interferometric signal processing; pulse-limited altimeter; sea level measurement; synthetic aperture radar; three-dimensional ground coordinate estimation; IRA; SAR Interferometry; altimeter; pulse-limited radar;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Synthetic Aperture Radar (APSAR), 2011 3rd International Asia-Pacific Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1351-4
Type :
conf
Filename :
6087077
Link To Document :
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